MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25695259a0ca73c611a08f55b57b1bf49f263723195aa3d1d7e7cfa183a3b44f278
MD5ca9995787fb119d4bd4809de865d3d6e
File Typeexe
Size1037.5 KB
First Seen2025-06-24
File NameCarta de porte aéreo de DHL #6829451400383-PDF.exe
TagsDHL, exe, MassLogger

Malware Family: MassLogger

MassLogger, email keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: 95259a0ca73c611a08f55b57b1bf49f263723195aa3d1d7e7cfa183a3b44f278
  • MD5: ca9995787fb119d4bd4809de865d3d6e

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network immediately
  2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
  3. Move crypto wallets to a new address and abandon the old ones
  4. Start a full scan with up-to-date antivirus
  5. Clear saved browser passwords and enable 2FA
  6. Sign out of all sessions on every affected service

YARA Rule Hints

rule MassLogger_SHA256 {
    meta:
        description = "MassLogger sample: 95259a0ca73c611a"
        threat_level = "medium"
        first_seen = "2025-06-24"
    condition:
        hash.sha256(0, filesize) == "95259a0ca73c611a08f55b57b1bf49f263723195aa3d1d7e7cfa183a3b44f278"
}

MassLogger — Malware Profile

MassLogger credential stealer. PT2600000043.js Portekiz fatura lurü. CommonJS obfuscation. dispatch configuration data.

Malware Type
Infostealer
Programming Language
C#/.NET
C2 Protocol
SMTP/FTP
Target Systems
Windows

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri
Çerez Hırsızlığı
Kripto Cüzdan Çalma
Sistem Bilgisi
Ekran Görüntüsü
FTP/SSH İstemci Şifreleri
E-posta İstemcisi Çalma
Veri Sızıntısı

IOC List (2 indicators)

IOC — MassLogger
# SHA256 95259a0ca73c611a08f55b57b1bf49f263723195aa3d1d7e7cfa183a3b44f278 # MD5 ca9995787fb119d4bd4809de865d3d6e
TypeValueNote
sha256 95259a0ca73c611a08f55b57b1bf49f263723195aa3d1d7e7cfa183a3b44f278 Sample:MassLogger
md5 ca9995787fb119d4bd4809de865d3d6e Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi